Hospital bed



J. D. DRY 2,369,447

HOSPITAL BED Filed Jan. 28,-1942 3 Sheets-Sheet 2 Feb. 13, 1945.

ATTORNEY Feb. 13, 1945. 1 D DRY v2,369,447

' HOSPITAL BED Filed Jan. 28, 1942 3 SheeiZS--Sheefl 1 A IN VENTOR.

JOHN D. DRY. BY Wm Febf 13, 1945.

J. D. DRY

HOSPITAL BED 3 Sheets-Sheet 3 Filed Jan. 28, 1942 /IOS , INVENTOR.

JOHN 2 DRK ,TTRNEY Patented Feb. 13, 1945 UNITED `STATES PATENT OFFICE HOSPITAL BED John D. Dry, New York, N. Y.

'Application January 28, 1942, Serial No. 428,489

. `5 claims.

This invention relates to improvements in hospital and invalid beds.

It is an object ofthe present invention to provide a hospital or invalid bed incorporating mechanical features for sanitarily introducing into the bed mattress a bed pan for use by the patient as desired.

It is a further object of the present invention to provide in a hospital bed equipped with aV mattress having a central opening, a cushion or mattress section adaptedto ll said opening `and a bed pan movable to a positionwithin the central opening, the cushion being swingable out of the way to make room for the bed pan.

It is yet another object of the present invention to provide'a very simple, practical, enicient and improved invalid or hospital bed incorporating means whereby the patient may perform his `eliminations without disturbing his comforts or his resting position. i

Anotherobject of the present invention resides in the provision of improved instrumentalities whereby the cover ofthe bed pan is automatically removed by the cushion during its swinging movement into inoperative position andreplaced during its return movement. l

It is another object of the present invention to provide mechanical means whereby the swinging into and out of positions of the bed pan and of the cushion is performed in the same con-1 l tinuous operation as the raising and lowering of the bedpan and cushion, respectively.

It is still another` object of this invention to `provide a mattress having a hole in the center with a rubber pad` covering the area surrounding this opening in the mattress, and string or tie members for fastening the bed sheet in its proper location over the center opening of; the mattress, the' string members being preferably arranged so that after the mattress isv turned lthe loose ends of the string can be pulled through the mattress, thus permitting the same lengh of string to be used when tieing the bed sheet to` either side of the mattress. i

It is another object of the invention to` provide a mattress for a hospital bed, the central opening vfor the purpose hereinabove described being provided with a sheet metal ring extending into the opening and supported from the top by a plurality of lug members, the metal ring overlapping a collar" extending upwardfrom a center plate i member, thus protecting the open portion of the mattress from being soiled.

'I'his invention accordingly consists in the features of construction, combination of parts and in the` unique relations ,r of; the members and in the relative proportioning anddispositionthereof all as more completely outlined herein.

'Ifo enable others skilled in the art to so fully comprehend the underlying features thereof that they may embody the same by the numerous modiiications in structure and relation contemplated by this invention, drawings depicting acertain form of the invention has been annexed asa part of' this disclosure, `and in which drawings, like characters of references denote corresponding parts throughout all of the views, of which:

Fig.` 1 is` a side elevational view of a bed incorporating the invention;

Fig. 2 is a sectional yplan view showing the cushion and bed pan in their respective central loca# tions, with bed pan being shown in broken lines indicating its swung-out position;

Fig. 3 `is a view similar tol that shown in Fig. 2, the cushion being indicated as swung outwardly, the bed pan coverraised and bed pan in central position;

Fig. 4 is a sectional view ofthebed panand cushion operating` mechanism;

Fig. 5 is a side view of the bed pan and cushion operating mechanism;

Fig; 5a is an enlarged detail view of a modied formA of spindle driving mechanism] shown in Flgw5; i Y

Fig. 6 is atop `plan view of jthe mattress with bed sheet partly swung back-thereby showing the central opening in. the mattress `with the rubber pad, and string members for` securing the sheet and rubber pad to `the mattress.

Fig.' 7 is an enlarged cross sectional view through the central opening inthe mattress; and

Fig. 8 is a sectional plan view, taken along line foot pieces I6, I l, respectively, and the cross tie pieces or` rails I8. Disposed above rails I8, is the conventional `bed spring member I9 supporting the mattress 20. Supportedby the spring members 2l is alcentrallydisposed plate casting 22.

I Three legs extenddownwardly from plate member 22, namely, the solid tie leg 25, and the tubular members or housing 2B, 21. Located within the spindle housing 26, is the threadedoperat-` together et their to tiers 1.5.8, Bed par; .3| is. slidebly supported i,ri a

ing shaft or spindle 28, operating the mattress cushion VKor plug 30, while shaft or spindle 20, within housing 21 operates the bed pan 3|.

Threadedly engaged on the shaft 2B, is a inember 32 to which is secured the arm 33 supporting cushion 30. The arm 33 at 34 extends through a slot 35 in the said tube 25. The slot 35 is of substantially the same width as the support member.33. The shaft 28 may be operated by means of aworrn wheel :3B and`a-worm 3|, worm 31 being connectedby means of a shaft 38 and a universal joint or pivoted link 39 to hand wheel shaft 40 and hand wheel 4 I. Manipulationof hand wheel 4| thus causes raising or lowering and outward swinging movement of vmember 32 on shaft 28. At thelowermost portion of slot 35, isan enlarged opening 42 extending towards `the operatingside of the bed. Member 32at the end of its lowering traverse reaches this enlarged opening. Friction" or the .threads ,or spindle .2,8 ,against the threads f .Irir-r1lrerA -will @arise the to rotate with the spindle ,and outwardly .through this enlarged opening 4? arid .io this marmer causing the mettress Cushion Bil. ,to swine outwardlyin its .lowered position, thus Clearing the bed een to be raised. .Seeured to support .member 3 3 et 4.5. is a :wire loop .4.6 ener' or the Ltiiloe 2t and .having .a straight extension 4.1. .P ivotedir vsecured to the sleeve metri-ber k.2t ,59 and to the .solid 11er member .2 et Slis a rod .5.2 to which is seoured the bed rari .53 .by .or braolret Erteiidins below rodi5?,.atritseeriter.l is e swinging erm 55. which swings ,rover 5.-.3 .into .eren posi-tion .and out .ofthe way ofthe bed pento be raised'fsee fFig. 3:). iollowing marmer. Awhen the support .33 .on member 32 has reached vopening .42 at the bottom y of `slot :3.5, it will swing .outwardly causing .ex-

tension A1 on loop .4B .to swing inwardly, thereby contacting swinging afi-m55 and thus rotating the rod 52 which in doing so raises cover 53.

vBed span 3| is supportedby an armV 00, secured to a member 6| adapted to ride up and down on spindle 62 v-wi-th-in the hollow leg member 21.

The spindle 62 is operated by'a4 `worm wheel 53 and a worm. 54 connected to a hand wheel 65, located at the operating side of the bed and` adjacent to the similar hand wheel 4|, The hollow member 21A-is provided witha slot 55 of the saine Width es thes'upporttrre member 60, .tous permit- 'tirie 'the .stre-ight lip arid ,down movement .of the bed pan 3|. At the bottom of slot t@ er1- lared Opening 6l: and the downward movement of ,member .d .dripping-1e 6.2. by manipulation .or Wheel. 5.5, the erro. Si! .will reach the yer1- larged opening El, thus permitting the friction of the vthreads .or the .spindle 5.2 against the threads within member 6| to dwing `.tllre broolret t@ with the bed pan 3|, outwardly towards -tlfie operating side of thebed The three lee members .25, and 2l are tied res lov-means of -tie .reemtray 10 byaoharmel .member 1|.-

sore ier, 2t .connettori to para 2.2 ty means, Qi ya. Socket 725 arid. tov .the tie members 5,8 by means of socket 15- Tuloiilar member 26 is se: our-edito plete 2?. br-.eloreolret .ll ord-to .domeniber 'it :by boss 1ti b 'e '181s provided `et the frotter@ or boss l? forming e. hearirie tor soindle 2.8- boss ng .1291's This is accomplished in ther "opening .|04 by means of four lugs pletely out .of the mattress.

Referring n'ow to Figs. 6, 7 and 8, mattress |00 is provided with a central opening |0|. `On top of opening |0| is a sheet |02 preferably made of rubberized material. Strings |03 pass through the mattress at |04 and are knotted at both ends |05 thus preventing the strings from 'slipping com Bed sheet |06 with the central opening lcorresponding to opening |0| in the mattress is provided withfour strings |08 for the purpose of tieing the bed sheet |06'` i A sheet metal ring or tube ||0 extends into mattress opening |0| and rests on top of mattress The plate 22 'is provided with an upwardly disposed eircular ange or vtubular member 2 which isoverlapped at H3 by the downwardly disposed edge 0' of sleeve ||0.

The .circular flange I l2.on its bottom v'ares out at ||2a, thereby forming .a Vfunnel-shaped -ex-` tension soas'to -faciltatethe entrance of the bed pan into the Aopening 0| when the bed pan is raised.

`In the modificationshown in Figs-9 and 10, the ring ||3a having lugs |||a is providedwith -cutouts ||9 to Clear the ribs |20 Vconnecting the ring |v|3awithfthe plate 22a. Plate A22a hasthe slots ||8 to clear apron .portion |2-| of ring I||3a when the mattress is compressed by the patient.

inthe modification shown in Fig. 5a, lthe spindle 28a within housing V26a has a bearing extension 80a, reaching into a bearing Bla of pla-te 22a. A'bevel 63d issecu-red to the top of spindle 28a and rmeshes with a `,bevel gear 64a' which is moiimnteqd on asha'ft38a,

yThe vfurietiorl ef .these bevel .sears .53a `die similar to that described heretofore Vfor worm gear 63 and worm 64.

VLetit be assumedithat the patient (not shown) desires-to use the bed `pan.` As show-n inFig. 1,. at that point the cushion r3|) is in operative position. Ilfhe attendant will turn hand wheel thereby lowering cushion 320` until bracket 33 reaches its lowermost position when the lfriction ofspindle 28 ,againstthe threads of nut 32 of bracket33 will swing bracket 33 carrying cushion 30, outward as shownrinrFig. 3. 'Ijhe attend.- ant will now operate khand wheel 65 which will raise'bed pan 3| 4into operative position. Cushion 30 on its outward movement previously desribed has raisedbed pan cover 53 b y operating arm 4'!v against swinging ,drm .5.5, all .previo-lisis drso'ribed'end Clearly illustrated in Firs- 2 and simo-a .After the bed pan has served .its purpose, the seme is lowered 'by oper-ation of '.heiid Wheel .55.5 to its .lowermost position illustrated .in rig. 1 erdaiter nut el resetting this position. the friotion of thread of spindle 2,9 .against nut ,6| will swing thebracket 60 (Cttlrylg the bed pan) ,out-

Wardiy, thereby f aoiIitetirig .the removal of .bed

pari .3! tor .dispensing purposes '.Qrerotion oi4 hand heel 41, o dir eotionop posits to that previously described will swing .iriwardiy the praeket .33 with the -cushion `3i) and the I.so.ritiriiiecl operation of the handle 4.o will raise the same bracket 3.3 to position the eushf ionen within mattress opening lill. Y 'The operation shown Figs.- 2` arid ,3. ooveririg vtherelation of the swinrirre'rrwvemeut of Ythe bed pas 3| ard the .30., be modided te .provide movements of bed pan Stand `cushion 30 in different directions from that shown, With-W out in any way aiecting the intent or` efficiency of the device.` i H i f "Having thus described the"` invention what is` claimed asnew, anddesired Patent, is: i

l. In a bed, a mattress having an opening therein, a1 rotatably mounted threaded shaft .exi, e tendingvertically"downward from said bed, a

`housing for saidshaft, said housing having a i longitudinal slot, ymeans thre-adedly engaging said l shaft and extendingoutwardly through saidslot,` said slot providing a guide for said means whereby rotation of said shaft causes linear movement F `of said means, said' meansincludinglasupport vertically movable selectivelyytowards and `from 'said opening `by rotation of said shaft,said slot to secure by Letters e rotation of saidshaft causeslinearnmovement of f opening byrotationiof said shaft, said slot being enlarged at its lower end whereby upon a further rotation of said shaftsaid means when` reaching e beingenlarged at one end' thereof whereby upon a further rotation of saidshaft said means when reaching said enlargementwill rotate with said shaft causing -said support to move laterally of, said mattress opening.` 1 Q i i 2. In a`jbed, `a mattress having an opening` therein, a rotatably mounted threaded shaft ex` `,tending vertically downwardyefrom said bed, a housing forsaid shaftVsaidVhousing having a i .,longitudinalslot, means threadedlyengaging said shaft and extending outwardly through` said slot,

said slot providing aguide for said means whereby rotation ofsaid shaft causes linear-,movement of said means, saidmeans includingia support l verticallygmovable Aselectively towards and `from said opening byrotation of said shaft and carrying an extended element, said slot being `enlarged said means, said means including `a support verticallymcvable selectively-towards and from `said said slot enlargement will rotate with said shaft 1` causing said `support to move laterallyof said `mattress opening, a second support, means for e raising-and lowering said second supportrelative l to said mattress opening, a swingable member dis-f posed above saidisecond` support and normally directly thereover'and meansfor causing swinging movement of said member by `said rst support upon said lateral movementof said first supi port whereby said member is swung outof the path of movement of said second support.

5. In a bed, a mattress having an opening j therein, two supports, a `mechanismfor moving one `of said supports relative to said opening, a

mechanism` for moving-the other of said supports relative to said opening; "eachof` said mechanisms at its lower end whereby upon afurther rotation of said shaft said means when reaching said slot,` f enlargement will` rotate with said shaft `causing said support to ,move laterally `of, said mattress opening, a member, means carrying said member for swingingmovement,thereofirelative to said housing, said member carrying means having a` i tending vertically downward from said bed, aA housing for said shaft, said housing having a longitudinal slot, means threadedly engaging said shaft and extending outward-ly through said slot,

comprising a rotatably` mounted threaded shaft extending vertically downward? from said bed, a

housing for said shaft, said housing havinga longitudinal slot, means threadedly engaging said shaft and extending outwardly through said slot,

said slot providing a guide for said means whereby rotation of said shaft causes lineari movement of said means, the means of one mechanism carrying `one of said supports and themeans of the other `mechanism carrying the otherof said supports,

u l said supports being vertically movable selectively j d towards and from said opening by rotation of said respective shafts,gsaid slots` being enlarged said slot providing a guide for said meanswheree i by rotation of said shaft causes linear movement of said means, said means including a support vertically movable-selectively `towards and from said opening by rotation'of said shaft, said slot being` enlarged atits lower end wherebyl upon a furthe;- rotation of said shaft saidmeans whenreaching said slot enlargement will rotate with said shaft at `their respective lower ends whereby upon `a further rotationlof a respectiveshaft the means engaging therewith when reaching said slot enlargement will rotate with said respective shaft` causing itssupportto move laterally of said openiing, `a swingable member disposed above one ofl said supports and normally directly thereover,

and means for causing swinging movementof said member by the other or said supports upon i said lateral movement of said otherof said sup-` ports whereby said member isyswung` out of 'the lpath ofmovement of said one `ofisaid supports.

e "JOHN D. DRY.

causing said support to move laterally of said `mattress. opening, a swingable ,memberg and Imeans for causing swinging movementfof said n `member by said shaft engaging means whenthe lattermeanszrotates with said shaft.` 1 f 4, In abed,` a mattress having an opening therein, a rotatably mounted threadedl shaft `extending vertically downward from `said bed,` a housing for` said shaft,` said housing having a` longitudinal slot, meansthreadedly engaging said j `shaft and extending outwardly lthrough said slot,` said slot providing a guide for said means whereby 

